An identification procedure of nonlinear unit feedback system is investigated by means of operator notation and Fourier transform, and some formulas for identification are given.
用算子符方法及傅里叶变换研究了单位反馈线性系统的一种辨识方法，并给出了辨识算式。
This new operator is, in fact, a shortcut notation for the ternary operator.
这个新操作符实际上是一个三目操作符的便捷记法。
In postfix notation, the operator comes after its operands.
在后缀表示法中，操作符位于操作数后面。
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